US Bridges

East Main Street over Harmony Brook

Good

Morris County, New Jersey · 1 Mile East of Cold Hill · Structure no. 1400696

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Frame
Concrete
Length
21 ft
1 main span
Daily traffic
1,591
2023 count
Owner
County
County Highway Agency

About this bridge

East Main Street over Harmony Brook is a concrete frame carrying East Main Street over Harmony Brook in Morris County, New Jersey. It was built in 2015, so it is 10 years old, younger than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,591 vehicles a day, roughly 1% of them trucks, projected to reach 1,942 by 2043. The structure is 21 ft (6.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEast Main Street
CrossesHarmony Brook
Location1 Mile East of Cold Hill
RouteCity Street 0
Coordinates40.79429, -74.56835
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width44 ft (13.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,591 (2023)
Projected traffic1,942 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was East Main Street over Harmony Brook built?

It was built in 2015, making it 10 years old in 2025.

What condition is East Main Street over Harmony Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does East Main Street over Harmony Brook carry?

About 1,591 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is East Main Street over Harmony Brook?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 44 ft wide.

Who owns East Main Street over Harmony Brook?

It is owned by the County Highway Agency.